True or false I — task. Mathematics State Board, Class 8.

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Say True or False:

1. Depreciation value is calculated by the formula,

P {(1 - \frac{r}{100})}^{n}

2. If the present population of a city is \(P\) and it increases at the rate of \(r\%\) p.a, then the population \(n\) years ago would be

P {(1 + \frac{r}{100})}^{n}

3. The present value of a machine is \(₹16800\). It depreciates at \(25\%\) p.a. Its worth after \(2\) years is \(₹9450\).

Did you find an error?

3. True or false I